物理学报Issue(16)：1-6,6.DOI:10.7498/aps.63.164203
连续相位板面形的随机特性研究
Surface sto chastic characteristics of continuous phase plate
摘要
Abstract
According to the stochastic behavior of the continuous phase plate (CPP) surface shape distribution, the autocor-relation function and the correlation length are used to analyze its surface shape characteristics. A Gaussian random distribution function is used to derive the analytic relation between the correlation length and the far-field distribution of CPP. Numerical algorithm is used to calculate the variance and the energy usage rate of CPP’s far-field distribution, and also the specific influence of correlation length on far-field distribution of CPP. The conclusion is that the smaller the correlation length, the better the homogeneity of far-field distribution is, and the closer to the target spot the shape of the focal spot will be, and at the same time the higher the energy usage rate will be.关键词
连续相位板/自相关函数/相关长度/远场分布Key words
continuous phase plate/autocorrelation function/correlation length/far-field distribution引用本文复制引用
吕晨,张蓉竹..连续相位板面形的随机特性研究[J].物理学报,2014,(16):1-6,6.基金项目
国家高技术研究发展计划(批准号:2013AA8042038)资助的课题.* Project supported by the National High Technology Research and Development Program of China (Grant No.2013AA8042038) （批准号:2013AA8042038）
